Vehicle, vehicle monitoring server, vehicle monitoring system, and vehicle monitoring method

A vehicle monitoring server comprising one or more processors, wherein

• the one or more processors perform a second control, and in the second control, the one or more processors:
• monitor presence or absence of incoming of an entry notice signal from each of the plurality of vehicles;
• when receiving the entry notice signal from a particular vehicle of the vehicles via a second communication device, monitor presence or absence of incoming of a pass completion signal from the particular vehicle;
• and
• perform an error output when not receiving the pass completion signal by a time at which a second predetermined point of time is reached after having received the entry notice signal from the particular vehicle.

A vehicle monitoring method of monitoring a plurality of vehicles via a vehicle monitoring server, wherein:

• each of the vehicle comprises one or more processors, and
• the one or more processors of each of the vehicles:
• preset a travel attention region;
• and
• when the travel attention region is included in a target route or a target trajectory, transmit an entry notice signal to a vehicle monitoring server via a first communication device before the vehicle enters the travel attention region;
• and
• wherein the vehicle monitoring server comprises one or more processors, and
• the one or more processors of the vehicle monitoring server:
• monitor presence or absence of incoming of the entry notice signal from each of the plurality of vehicles;
• when receiving the entry notice signal from a particular vehicle of the vehicles via a second communication device, monitor presence or absence of incoming of a pass completion signal from the particular vehicle;
• and
• perform an error output when not receiving the pass completion signal by a time at which a second predetermined point of time is reached after having received the entry notice signal from the particular vehicle.

A vehicle monitoring method of monitoring a plurality of vehicles via a vehicle monitoring server, wherein:

• a position sensor of each of the vehicles detects a current position of the vehicle;
• each of the vehicles comprises one or more processors, and
• the one or more processors of each of the vehicles transmit the current position of the vehicle to the vehicle monitoring server via a first communication device;
• and
• the vehicle monitoring server comprises one or more processors, and
• the one or more processors of the vehicle monitoring server:
• preset a travel attention region;
• monitor the current position via a second communication device from each of the plurality of vehicles;
• and
• perform an error output when a particular vehicle of the vehicles does not pass through the travel attention region by a time at which a third predetermined point of time is reached after the particular vehicle has entered the travel attention region.